Question

question 7
1 pts
a baby girl is born with the blood type ab. the childs blood type is an example of what kind of inheritance?
wild type
incomplete dominance
codominance
sex - linked

Explanation:

• Wild - type refers to the most common phenotype in a natural population, not related to the blood - type inheritance mechanism here.
• In incomplete dominance, the heterozygous phenotype is intermediate between the two homozygous phenotypes. For example, in snapdragons, red and white - flowered parents produce pink - flowered heterozygotes. This is not the case for blood type AB.
• Codominance is when both alleles in a heterozygote are fully expressed. In blood type inheritance, if a person has blood type AB, both the A and B alleles are expressed on the surface of red blood cells.
• Sex - linked inheritance is related to genes located on sex chromosomes. Blood type inheritance is autosomal (not on sex chromosomes).

Answer:

codominance